What is the cheapest airline that flies from Louisville Intl to Sydney Kingsford Smith?

United Airlines and Qantas Airways are the most popular carriers operating from Louisville Intl to Sydney Kingsford Smith

What airlines fly to Sydney?

Qantas Airways, United Airlines and American Airlines are the top three most popular airlines that fly to Sydney from Louisville according to our data. Qantas Airways is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Sydney. Keep in mind that there are 4 different airlines that fly to Sydney on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?

There is 1 operator available for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport as of November 2026.

How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.

What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?

The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$694 Cheap Flights from Louisville to Sydney in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to Sydney

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:47 am - 6:55 amSDF Louisville Intl-SYD Sydney Kingsford Smith

28h 08m1 stop Dallas/Fort Worth

5:50 pm - 3:15 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

37h 25m2 stops Auckland Intl Dallas/Fort Worth

$1,048Qantas Airways

Tue, Dec 1 - Tue, Dec 8

6:28 pm - 11:45 amSDF Louisville Intl-SYD Sydney Kingsford Smith

25h 17m2 stops Dallas/Fort Worth Brisbane

2:05 pm - 5:41 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

19h 36m1 stop Dallas/Fort Worth

$1,296Qantas Airways

Sun, Jan 24 - Sat, Feb 13

7:00 am - 8:35 amSDF Louisville Intl-SYD Sydney Kingsford Smith

33h 35m2 stops Houston George Bush Intcntl Auckland Intl

7:25 pm - 8:05 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

40h 40m2 stops Auckland Intl Houston George Bush Intcntl

$1,313Air New Zealand

Sun, Jan 24 - Sat, Feb 13

7:05 am - 8:35 amSDF Louisville Intl-SYD Sydney Kingsford Smith

33h 30m2 stops Houston George Bush Intcntl Auckland Intl

7:25 pm - 8:59 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

41h 34m2 stops Auckland Intl Houston George Bush Intcntl

$1,360Air New Zealand

Sun, Mar 7 - Sat, Mar 13

9:10 am - 8:35 amSDF Louisville Intl-SYD Sydney Kingsford Smith

31h 25m2 stops Houston George Bush Intcntl Auckland Intl

11:50 am - 11:59 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

28h 09m3 stops Auckland Intl Los Angeles Chicago O'Hare Intl

$1,427Multiple Airlines

Sun, Jan 24 - Sat, Feb 13

9:32 am - 8:35 amSDF Louisville Intl-SYD Sydney Kingsford Smith

31h 03m2 stops Houston George Bush Intcntl Auckland Intl

2:05 pm - 11:55 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

25h 50m3 stops Auckland Intl Los Angeles Chicago O'Hare Intl

$1,477Multiple Airlines

Sun, Mar 7 - Sat, Mar 13

5:22 pm - 6:55 amSDF Louisville Intl-SYD Sydney Kingsford Smith

21h 33m1 stop Dallas/Fort Worth

2:05 pm - 6:25 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

20h 20m1 stop Dallas/Fort Worth

$1,488Qantas Airways

Tue, Dec 1 - Tue, Dec 8

1:59 pm - 9:05 amSDF Louisville Intl-SYD Sydney Kingsford Smith

27h 06m2 stops Chicago O'Hare Intl Los Angeles

1:20 pm - 10:25 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

25h 05m2 stops San Francisco Denver Intl

$1,503United Airlines

Tue, Dec 1 - Tue, Dec 8

1:55 pm - 6:20 amSDF Louisville Intl-SYD Sydney Kingsford Smith

24h 25m2 stops Chicago O'Hare Intl San Francisco

9:20 am - 1:33 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

20h 13m1 stop Houston George Bush Intcntl

$1,561United Airlines

Sun, Mar 7 - Sat, Mar 13

7:55 pm - 6:10 amSDF Louisville Intl-SYD Sydney Kingsford Smith

44h 15m2 stops Dallas/Fort Worth Hong Kong Intl

2:05 pm - 11:48 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

47h 43m2 stops Hong Kong Intl Chicago O'Hare Intl

$1,573Multiple Airlines

Sun, Apr 11 - Sun, Apr 18

Cheap last minute flights

Enter your travel dates to find the best prices.

7:00 am - 9:50 pmSDF Louisville Intl-SYD Sydney Kingsford Smith

46h 50m2 stops Houston George Bush Intcntl Auckland Intl

11:50 am - 8:33 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

24h 43m2 stops Auckland Intl Houston George Bush Intcntl

$1,408Air New Zealand

Sun, Nov 8 - Fri, Nov 13

7:00 am - 8:35 amSDF Louisville Intl-SYD Sydney Kingsford Smith

33h 35m2 stops Houston George Bush Intcntl Auckland Intl

11:50 am - 10:30 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

26h 40m3 stops Auckland Intl Los Angeles Chicago O'Hare Intl

$1,527Multiple Airlines

Sun, Nov 8 - Fri, Nov 13

1:25 pm - 8:15 amSDF Louisville Intl-SYD Sydney Kingsford Smith

26h 50m2 stops Dallas/Fort Worth Melbourne

2:05 pm - 6:09 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

20h 04m1 stop Dallas/Fort Worth

$1,760Qantas Airways

Sun, Nov 8 - Fri, Nov 13

6:54 pm - 8:05 amSDF Louisville Intl-SYD Sydney Kingsford Smith

45h 11m3 stops Dallas/Fort Worth Hong Kong Intl Melbourne

11:45 am - 5:31 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

45h 46m3 stops Melbourne Hong Kong Intl Chicago O'Hare Intl

$1,807Multiple Airlines

Sun, Nov 8 - Fri, Nov 13

1:25 pm - 9:20 amSDF Louisville Intl-SYD Sydney Kingsford Smith

27h 55m2 stops Dallas/Fort Worth Melbourne

2:05 pm - 6:09 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

20h 04m1 stop Dallas/Fort Worth

$1,822Qantas Airways

Sun, Nov 8 - Thu, Nov 12

1:25 pm - 9:00 amSDF Louisville Intl-SYD Sydney Kingsford Smith

27h 35m2 stops Dallas/Fort Worth Melbourne

2:05 pm - 6:09 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

20h 04m1 stop Dallas/Fort Worth

$1,827Qantas Airways

Sun, Nov 8 - Thu, Nov 12

5:26 pm - 6:55 amSDF Louisville Intl-SYD Sydney Kingsford Smith

21h 29m1 stop Dallas/Fort Worth

2:05 pm - 6:09 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

20h 04m1 stop Dallas/Fort Worth

$1,936Qantas Airways

Sun, Nov 8 - Fri, Nov 13

1:25 pm - 9:00 amSDF Louisville Intl-SYD Sydney Kingsford Smith

27h 35m2 stops Dallas/Fort Worth Melbourne

8:45 am - 3:30 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

22h 45m2 stops Melbourne Dallas/Fort Worth

$2,027Qantas Airways

Sun, Nov 8 - Thu, Nov 12

3:24 pm - 9:20 amSDF Louisville Intl-SYD Sydney Kingsford Smith

25h 56m2 stops Denver Intl San Francisco

9:10 am - 9:58 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

28h 48m1 stop Houston George Bush Intcntl

$2,399United Airlines

Sun, Nov 8 - Thu, Nov 12

3:45 pm - 9:05 amSDF Louisville Intl-SYD Sydney Kingsford Smith

25h 20m2 stops Houston George Bush Intcntl Los Angeles

11:20 am - 6:32 pmSYD Sydney Kingsford Smith-SDF Louisville Intl

23h 12m2 stops Los Angeles Chicago O'Hare Intl

$2,404United Airlines

Sun, Nov 8 - Thu, Nov 12

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Air New Zealand flights from Louisville to Sydney

Our best Air New Zealand deals on Louisville to Sydney flight tickets

Air New Zealand

Jan 24

SDF7:00 amLouisville Intl

33h 35m

2 stops

SYD8:35 amSydney Kingsford Smith

Feb 13

SYD7:25 pmSydney Kingsford Smith

40h 40m

2 stops

SDF8:05 pmLouisville Intl

$1,313

Air New Zealand

Mar 7

SDF7:05 amLouisville Intl

33h 30m

2 stops

SYD8:35 amSydney Kingsford Smith

Mar 13

SYD7:25 pmSydney Kingsford Smith

41h 34m

2 stops

SDF8:59 pmLouisville Intl

$1,360

Air New Zealand

Nov 8

SDF7:00 amLouisville Intl

46h 50m

2 stops

SYD9:50 pmSydney Kingsford Smith

Nov 13

SYD11:50 amSydney Kingsford Smith

24h 43m

2 stops

SDF8:33 pmLouisville Intl

$1,408

Qantas Airways flights from Louisville to Sydney

Our best Qantas Airways deals on Louisville to Sydney flight tickets

Qantas Airways

Dec 1

SDF10:47 amLouisville Intl

28h 08m

1 stop

SYD6:55 amSydney Kingsford Smith

Dec 8

SYD5:50 pmSydney Kingsford Smith

37h 25m

2 stops

SDF3:15 pmLouisville Intl

$1,048

Qantas Airways

Jan 24

SDF6:28 pmLouisville Intl

25h 17m

2 stops

SYD11:45 amSydney Kingsford Smith

Feb 13

SYD2:05 pmSydney Kingsford Smith

19h 36m

1 stop

SDF5:41 pmLouisville Intl

$1,296

Qantas Airways

Dec 1

SDF5:22 pmLouisville Intl

21h 33m

1 stop

SYD6:55 amSydney Kingsford Smith

Dec 8

SYD2:05 pmSydney Kingsford Smith

20h 20m

1 stop

SDF6:25 pmLouisville Intl

$1,488

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 12/1

10:47 am-6:55 am

1 stop28h 08m

Sydney Kingsford Smith

Tue 12/8

5:50 pm-3:15 pm

2 stops37h 25m

$1,048

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 1/24

6:28 pm-11:45 am

2 stops25h 17m

Sydney Kingsford Smith

Sat 2/13

2:05 pm-5:41 pm

1 stop19h 36m

$1,296

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 1/24

7:00 am-8:35 am

2 stops33h 35m

Sydney Kingsford Smith

Sat 2/13

7:25 pm-8:05 pm

2 stops40h 40m

$1,313

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 3/7

7:05 am-8:35 am

2 stops33h 30m

Sydney Kingsford Smith

Sat 3/13

7:25 pm-8:59 pm

2 stops41h 34m

$1,360

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 1/24

9:10 am-8:35 am

2 stops31h 25m

Sydney Kingsford Smith

Sat 2/13

11:50 am-11:59 pm

3 stops28h 09m

$1,427

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 3/7

9:32 am-8:35 am

2 stops31h 03m

Sydney Kingsford Smith

Sat 3/13

2:05 pm-11:55 pm

3 stops25h 50m

$1,477

Quickest round-trip

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 12/1

5:22 pm-6:55 am

1 stop21h 33m

Sydney Kingsford Smith

Tue 12/8

2:05 pm-6:25 pm

1 stop20h 20m

$1,488

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Tue 12/1

1:59 pm-9:05 am

2 stops27h 06m

Sydney Kingsford Smith

Tue 12/8

1:20 pm-10:25 pm

2 stops25h 05m

$1,503

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 3/7

1:55 pm-6:20 am

2 stops24h 25m

Sydney Kingsford Smith

Sat 3/13

9:20 am-1:33 pm

1 stop20h 13m

$1,561

LouisvilleSydney

SDF Louisville Intl - SYD Sydney Kingsford Smith

SDFSYD

Louisville Intl

Sun 4/11

7:55 pm-6:10 am

2 stops44h 15m

Sydney Kingsford Smith

Sun 4/18

2:05 pm-11:48 pm

2 stops47h 43m

$1,573

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to Sydney

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Sydney?

In general, April is the cheapest month to fly from Louisville to Sydney. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Sydney during the month of April, then departing from Louisville during the month May is also very affordable. Most momondo users find prices during this month for around $1,165.

Can stopping save me money on Louisville to Sydney flights?

You could potentially save up to 7% on your flight if you consider stops on a Louisville to Sydney flight.

When to book flights from Louisville to Sydney

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Sydney according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Sydney

Best Price Found	$694
Fastest flight time	23h 19m
Direct flights	None

The best one-way flight to Sydney from Louisville in the past 72 hours is $694. The best round-trip flight deal from Louisville to Sydney found on momondo in the last 72 hours is $1,048.

The fastest flight from Louisville to Sydney takes 23h 19m

There are no direct flights from Louisville to Sydney. There are no popular flight routes from Louisville to Sydney.

Search flight deals

Frequently asked questions about flying from Louisville to Sydney

How far is Louisville Intl to Sydney Kingsford Smith by plane?
A flight from Louisville Intl to Sydney Kingsford Smith will travel around 9284.6 mi. A reasonable flight in good conditions will take 23h 19m.
When did momondo last update prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
Prices for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport?
There is 1 operator available for flights from Louisville Intl Airport to Sydney Kingsford Smith Airport as of November 2026.
How old do you have to be to fly from Louisville Intl Airport to Sydney Kingsford Smith Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Sydney Kingsford Smith Airport.
What documentation or ID do you need to fly to Sydney Kingsford Smith Airport?
The required travel and health documents for your Sydney Kingsford Smith Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Sydney Kingsford Smith Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Louisville to Sydney?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Louisville to Sydney is United Airlines (100% of total bookings).

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $1,243	Free Cancellation	Rating 7.3 10,460 reviews		Search United Airlines flights

Parramatta

Bondi Beach

Wollongong

Penrith

Katoomba

Coogee

Leura

Terrigal

Cronulla

Randwick

Manly

Lithgow

Charlestown

Swansea

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Sydney?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Sydney for you.

Can I find flights from Louisville to Sydney with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Sydney flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Sydney?

momondo provides multiple filters to help you find the best flight to Sydney from Louisville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Louisville to Sydney right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Louisville to Sydney now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sydney and let you know when they change.

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Cheap flights from Louisville to Sydney from $694

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Sydney departing on 2/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air New Zealand flights from Louisville to Sydney

Our best Air New Zealand deals on Louisville to Sydney flight tickets

Qantas Airways flights from Louisville to Sydney

Our best Qantas Airways deals on Louisville to Sydney flight tickets

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Use the filters below to find and compare flights from Louisville to Sydney that are best for you.

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How to get the cheapest flight ticket from Louisville to Sydney

What is the cheapest month to fly to Sydney?

Can stopping save me money on Louisville to Sydney flights?

What is the cheapest airline that flies from Louisville Intl to Sydney Kingsford Smith?

What airlines fly to Sydney?

When to book flights from Louisville to Sydney

Cheap Louisville to Sydney (SDF to SYD) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Louisville to Sydney

Best airlines flying from Louisville to Sydney

Compare and see reviews for airlines that fly from Louisville to Sydney with momondo

Traveling to a place near Sydney?

Why use momondo?

An easier way to manage your Sydney trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Australia

Airports servicing New South Wales

Fly your favorite airline to Sydney

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Sydney

List of cabin classes available on flights landing in Sydney. Availability may vary depending on flight origin and airline.

Popular cities in Australia

Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

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